Home / 13,021.67-19,532.61-3,161.03

Finding the Fourth Proportional to 13,021.67, 19,532.61 and 3,161.03

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Solution

The fourth proportional to 13,021.67, 19,532.61 and 3,161.03 is: 4,741.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.67 : 19,532.61 = 3,161.03 : x
  2. Step 2: Convert to fraction form
    13,021.67/19,532.61 = 3,161.03/x
  3. Step 3: Cross multiply
    13,021.67x = 19,532.61 × 3,161.03
  4. Step 4: Simplify right side
    13,021.67x = 61,743,068.53
  5. Step 5: Solve for x
    x = 61,743,068.53/13,021.67
  6. Step 6: Final answer
    x = 4,741.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.